It doesn’t matter whether the medium is DVD or Vinyl, CD or Cassette
— the keyword is "Medium." Hey, if any of these formats were "amazing"
we’d call them that, right? OK, so maybe I’m taking this a bit (or is it
a byte?) too far, but the fact remains: all storage media are flawed in
some way.

History has shown that analog’s "flaws" eventually became its desirable
qualities. This month’s overview of recording media — specifically records
— will show that even "dead" technology has something to teach us. This
is hopefully the first of several overviews of audio’s obstacles — past,
present and future.

MASTERING 101

Danny Caccavo has remastered and remixed several projects using ProTools.
(See Table One for credits or visit his
home page) He is a knowledgeable recording and mix engineer (as
well as a Mellotron owner). As a listener, one of Danny’s obstacles to
CD reissues was the standard complaint; excess or harsh high frequencies
and/or the lack of low frequency "warmth."

When he first began receiving tapes for remastering, Danny’s first observation
was that they seemed excessively bright or at least, "much brighter than
he remembered them." We discussed this subject to death several times and
at one point I showed him an Ampex 351 tape machine manual containing references
to the Ampex Master Equalization (AME) curve. AME improved the apparent
signal-to-noise ratio by boosting the 2 kHz to 6 kHz region during record
and taking it away during playback. It was intended for in-house use only.

PLUG-INS

Danny obtained a print-out of the AME curve from Standard Tape Laboratories,
then modeled an inverse AME-style curve using the Waves Q-10 EQ plug-in
for ProTools. He found that in some cases, it made old recordings much
more listenable. During the late fifties and early sixties, most mono record
players didn’t have tweeters, let alone the ability to reproduce above
10 kHz — explaining why many pop recordings seem overly bright when played
on modern equipment (tape or disc). Many of the final Motown mixes were
approved using car speakers — EQ’d so they’d really cut through AM radio
and jukeboxes! In the case of the Temptations project (which were not AME
recordings), the inverse AME curve serves as "corrective" equalization.

In addition, the Waves C-1 dynamics plug-in features a "split mode"
which allowed Danny to create a dual band limiter that simultaneously limited
high frequencies (de-essing) while also smoothing out some low-frequency
peaks and troughs (compression). Later, on an Arthur Lyman project (which
actually did use the AME curve), Danny applied the inverse curve via the
Focusrite D-2 TDM plug-in.

RECORD EQ

While in LA for the '96 AES, I visited veteran mastering engineer, Wally
Traugott, at the Capitol
Tower in LA. During training (in the mid Sixties), he recalled
being instructed to roll off high frequencies above 12 kHz and low frequencies
below 47 Hz when cutting 45’s. Excessive low frequencies make the grooves
more difficult to track for phonographs at the bottom of the food chain.

The RIAA EQ curve (see inset in Figure One), already includes a serious
high frequency boost. Rolling off frequencies above 12 kHz preserved the
playable information while discarding that which is either untrackable
or potentially damaging to the cutterhead. (Later, helium had to be pumped
in to keep coils cool.)

VOLUME WARS

The sixties were the battleground for the "volume wars." Some records
were mastered as loud as possible to "override" the automatic volume control
(AVC) circuitry built in to most jukeboxes. Columbia, Epic and London were
most guilty of generating product that was obviously distorted (and using
a cheap plastic — polystyrene — that was very unforgiving), while Capitol
and RCA stayed within safe margins and almost exclusively used vinyl.

TOOLS

Meanwhile, my odd assortment of vintage listening tools includes a Rek-o-Kut
turntable outfitted with an original General Electric VR-II mono magnetic
cartridge featuring both a 1 mil (.001 inch) "Microgroove" stylus as well
as a 3 mil "Standard 78" stylus. (This turntable also had a separate arm
for playing stereo records!) Before doing any tests, I noticed how great
my 45 collection sounded with this combination. Even the really scratchy
ones sounded better than they did on my more sophisticated system. Why?

Figure One is a hand-drawn frequency response chart of a 45 RPM
RCA test record (circa 1951) played with three cartridge/turntable/preamp
combinations. (The inset shows the record EQ curve.) A mixer permitted
adjustment of playback levels using the 1 kHz tone as the reference. The
"warmth" of the VR-II comes from a gradual rise below 1 kHz that, from
400 Hz down to 50 Hz (three octaves), is up 1/2 dB. (Notice the 2 dB "rise"
at 31.5 Hz as well!) At the opposite end of the spectrum is a pretty serious
roll-off hinging at 4 kHz. The VR-II’s 1 mil stylus is too fat to track
dainty high frequencies hence the response at 7 kHz is down 3 dB while
12 kHz is down 10 dB and off the chart! And that’s where all the screetchies
went!

In the late fifties, stereo records required not only a special cartridge
but also a smaller stylus (.7 mils or .0007 inches) which improved high
frequency response. Up until this point (he-he), the tip was still "conical"
(cone shaped) but an elliptical stylus — as both of the modern cartridges
are equipped — reveals that, even in 1951, extended high-frequency information
made it to the record. The Shure V-15 Type IV, for example, delivered 9
kHz and 15 kHz at -1.25 dB and -2.5 dB, respectively.

Note: The system was not tested with a "modern"
reference disk to determine actual performance.

SCREW THOSE BLASTED TONES, GIMME SOME MUSIC!

While the three playback systems were calibrated at 1kHz, I played an
original 1960 pressing of The Orlon’s "South Street." (I am originally
from Philadelphia, yew know!) I made transfers to DAT and edited three
identical sections together for comparison. (Touch
here for sound file samples) The difference between the VR-II and both
Shure cartridges is like the difference between AM and FM, respectively.

ARTISTIC DECISIONS: The Final Frontier

I can tell you from experience that minimal use of EQ during the tracking
stage will help keep things simple until mix time. If you start out with
bright tracks, every added track has to compete and, not every track needs
all the fidelity technology has to offer. Too often we reach for additive
EQ when a little subtraction will do a better job.

Of the many decisions to be made during the mix and mastering phases,
one will be whether or not to make your mix spectrally competitive with
the current market norm. Reissue specialists also face that challenge.
Danny’s treatment of the Temptations "Anthology" is infinitely more palatable
than pre-Polygram Motown re-releases.

When making critical EQ decisions, try to do so with fresh ears. (First
impressions are key.) Allowing full bandwidth to come through may seem
great at first (listen to all that detail) but your ears will either quickly
get used to it (and want more) or become fatigued. The excess brightness
still prevalent in nineties mixes is mostly the result of compensating
for bad speakers and, uh, left-over cocaine abuse from the eighties.

So, what does "dead technology" teach us? Well, it’s sort like a mix
between The Wizard of Oz and Star Wars. Dorothy always had the power to
leave OZ and, upon returning to Kansas, realized she never had to leave
her own back yard. Obi Wan instructed Luke to use "The Force" rather than
rely soley on what his eyes and ears told him. The summary: we’ve always
had Hi Fidelity, we just didn’t always have the equipment to play it back.

And so, girls and boys, remember, there is no single magic "black box"
that can solve all of your audio problems as much as that very first reaction,
"How does it make me feel?"

TABLE ONE: Danny's Abbreviated CreditsReissue:

James Brown "Funk Power - 1970: A Brand New Thang" (Polygram) "Give
It Up Or Turn it A Loose" "There Was A Time (I Got To Move)" "Get Up I
Feel Like Being A Sex Machine" The Spinners "One Of A Kind Love Affair
- The Anthology" (Atlantic) "How Could I Let You Get Away" (live) Roy Ayers
Ubiquity "Live At The Montreux Jazz Festival" (remixed/mastered) (Verve)
James Brown "Foundations Of Funk - A Brand New Bag: 1964-1969" (Polygram)
"Out Of Sight/Bring It Up" (live) "Cold Sweat" (alternate take) "The Popcorn"
"Licking Stick-Licking Stick" (live) "Brother Rapp" "Mother Popcorn" (live)

Thanks to Real Audio, you can actually hear
the spectral differences of at least one of the three phono cartridge/stylus
combinations. For those with fast internet access, click
here to stream the 97k audio file. Or, touch the 45 RPM record
player below to load the file first, then play. Enjoy!